How do you get moving signatures and/or avatars?

Animate a .gif

...? I'm not that smart.

http://www.jhepple.com/gif_animator.htm

Making a banner or avatar with no animation experience can be very hard... I even mess around with it sometimes and I can't do it very well...

http://gimp-win.sourceforge.net/stable.html

GAP (GIMP Animation Package) is at the bottom.

All you need is paint and mircosoft gif animator.